Final answer:
Thomas Hutchinson, Governor of Massachusetts, tried to ban fireworks on Guy Fawkes Day after the Boston Massacre. Most soldiers involved in the massacre were acquitted, but two were found guilty.
Step-by-step explanation:
The person who tried to ban fireworks on Guy Fawkes Day was Thomas Hutchinson, Governor of Massachusetts at the time. After the Boston Massacre, there was a mass meeting held at Faneuil Hall where they demanded the removal of troops from the city. Hutchinson moved the troops to an island in the harbor but agreed to put the soldiers on trial. In the end, most of the soldiers were acquitted, but two were found guilty of manslaughter.